public override void Map(DifferentialGeometry dg, ref float s, ref float t, ref float dsdx, ref float dtdx,
ref float dsdy,
ref float dtdy)
{
Vector3 vec;
var zero = new Vector3(0);
Vector3.Subtract(ref dg.Point, ref zero, out vec);
s = _ds + Vector3.Dot(vec, _vs);
t = _dt + Vector3.Dot(vec, _vt);
Vector3.Dot(ref dg.Dpdx, ref _vs, out dsdx);
Vector3.Dot(ref dg.Dpdx, ref _vt, out dtdx);
Vector3.Dot(ref dg.Dpdy, ref _vs, out dsdy);
Vector3.Dot(ref dg.Dpdy, ref _vt, out dtdy);
}
public override void Map(DifferentialGeometry dg, ref float s, ref float t, ref float dsdx, ref float dtdx,
ref float dsdy,
ref float dtdy)
{
throw new NotImplementedException();
}
